Sivanthi, Thanikesavan and Chennu, Srivas and Kreft, Lothar
Modeling Decentralized Real-Time Control by State Space Partition of Timed Automata.
In: DS-RT '05: Proceedings of the Ninth IEEE International Symposium on Distributed Simulation and Real-Time Applications.
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Timed automata provide useful state machine based representations for the validation and verification of realtime control systems. This paper introduces an algorithmic methodology to translate the state space visualization of a centralized real-time control system to a decentralized one. Given a set of timed automata representing a centralized real-time control system, the algorithm partitions them into a collection of interacting submachines. Importantly, this methodology allows for model-checking of the derived decentralized system against the same set of verifications as that specified for the centralized system. The complexity analysis of the algorithm is presented as a function of the number of tasks and nodes comprising the decentralized system.
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